.expansion-panel-list {
  background-color: var(--site-filledCard-bgColor);
  color: var(--site-filledCard-fgColor);
  border: 1px solid var(--site-card-borderColor);
  border-radius: 12px;
  margin-block-start: 1.5rem;
  margin-block-end: 1.5rem;

  .expansion-panel {
    >a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0.5rem 1rem;
      border-radius: 12px;

      &::after {
        // Duplicated since Firefox doesn't support content alt text.
        content: 'keyboard_arrow_down';
        content: 'keyboard_arrow_down' / '';
        font-family: var(--site-icon-fontFamily);
        font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
        font-weight: normal;
        font-style: normal;
        font-size: 24px;

        transition: transform .25s ease-in-out;
        color: var(--site-base-fgColor-lighter);
      }

      .collapsing {
        transition-duration: .2s;
      }

      &:not(.collapsed) {
        &::after {
          transform: rotate(180deg);
        }
      }

      &:hover {
        text-decoration: none;
      }
    }
  }

  .expansion-panel-title {
    display: flex;
    flex-direction: row;
    align-items: center;
    margin: 0;
    gap: 1.5rem;

    @media (min-width: 768px) {
      margin: 0.5rem;
    }

    .expansion-panel-title-leading {
      height: 6rem;
      width: 6rem;
      flex-shrink: 0;
      display: none;

      @media (min-width: 768px) {
        display: flex;
      }
    }

    .expansion-panel-title-content {
      .content-title {
        color: var(--site-base-fgColor);
        font-size: 1rem;
        font-weight: 500;
        margin-bottom: .25rem;

        @media (min-width: 768px) {
          font-size: 1.25rem;
        }
      }

      .content-description {
        color: var(--site-base-fgColor);
        margin-bottom: 0.5rem;
      }

      .content-tags {
        display: flex;
        flex-direction: row;
        list-style: none;
        padding-left: 0;
        margin-bottom: .75rem;
        margin-top: 0;

        .tag {
          color: var(--site-base-fgColor-lighter);
          font-size: .8rem;
          line-height: 1;
          margin-bottom: 0;

          &::after {
            // Duplicated since Firefox doesn't support content alt text.
            content: ' |\00a0';
            content: ' |\00a0' / '';
          }

          &:last-child::after {
            content: '';
          }
        }
      }
    }
  }

  .expansion-panel-body {
    display: none;
    margin: auto;
    padding-top: .75rem;
    width: 90%;
    border-top: .05rem solid var(--site-card-borderColor);

    p {
      margin-top: 1.5rem;
    }

    .separator {
      margin-bottom: 1rem;
      margin-top: 1.5rem;
      border-top: .05rem solid rgba(0, 0, 0, 0.125);
    }

    &.show {
      display: block;
    }
  }

  > :last-child {
    .separator {
      border-top: none;
      margin-top: 2.5rem;
    }
  }
}
